Dawson River salmon vs Australian arowana

Dawson River salmon and Australian arowana both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dawson River salmon	Yes	No	No	No
Australian arowana	Yes	No	No	No

As nouns, Dawson River salmon and Australian arowana are synonyms defined as:

Dawson River salmon and Australian arowana: a species of large fish found in Australian rivers, it has a red or pink spot on every scale (Scleropages leichardti)

Other synonyms of Dawson River salmon include saratoga, Scleropages leichardti, spotted barramundi, spotted bonytongue.

Dawson River salmon (noun)	Australian arowana (noun)
a species of large fish found in Australian rivers, it has a red or pink spot on every scale (Scleropages leichardti)	a species of large fish found in Australian rivers, it has a red or pink spot on every scale (Scleropages leichardti)